Three Measurement Devices Research Projects of Zhejiang Institute of Metrology Accepted Acceptance
Wafer Butterfly Valve
The valve has compacted structure, small
flow-resistance with the flow pattern tend to be straight so that no sundries
is kept inside. What`s more, it is light and convenient to install. The valve
can be applied to cut off or regulate the flow of media. The valve can be
actuated by operating lever, handle wheel, electric actuator or pneumatic
actuator.
The disc and the stem are connected without
the structure of pin bolts, which guarantees no inner leakage.
Sealed surface of the disc is spherically
shaped, which promotes the sealing capacity and increases the durability, which
is to say even if opened and closed with pressure more than 50000 times, it
remains no leakage.
Upon requests, the disc can be coated with
Nylon or F46, Excellent anti-corrosion.
The valve body is coated with epoxy resin
without any exposure of iron.
The epoxy resin and rubber used comply with
sanitary standard DVGW
The valve can be used in water supply and
drainage, disposing of polluted water, heat supply, gas, ship industry,
metallurgical industry, energy system and textile and so on, especially
applicable to those occasions that bi-directional sealing and valve body are
easily eroded.
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"The study of conductive liquid medium thermal conductivity test device" developed a transient hot wire thermal conductivity test device, with the characteristics of stability, small fluctuations, etc., can be used for rapid measurement of conductive liquid medium thermal conductivity, to fill the material heat Physical property key laboratory in the liquid phase thermal conductivity test blank.
Based on the research of portable blackbody metrology furnaces based on semiconductor technology, a portable blackbody metrology furnace device based on semiconductor technology was developed and developed. It features high emissivity, rapid temperature rise and cooling, and portability, and will provide more convenient and efficient services for on-site inspections.
The "Research on Portable Temperature and Humidity Standard Devices Based on Shunt Method" solves the problem of temperature and humidity parameters, develops a high-precision portable temperature and humidity standard device, and has the characteristics of simultaneous control and simultaneous measurement of temperature and humidity parameters in the same cavity. , It can be used as a new supporting equipment for laboratory metrology standards to improve the laboratory's online testing and calibration capabilities.
(Original title: 3 provincial scientific research projects passed the expert acceptance)
Summary:
Unique Design:
Reliable Sanitation:
Appling Area: